TY - JOUR
T1 - Quantitative evaluation of coronary arterial stenosis using 16-slice multidetector-row computed tomography
T2 - Preliminary evaluation of phantom study
AU - Yamada, Minoru
AU - Jinzaki, Masahiro
AU - Kuribayashi, Sachio
AU - Sato, Kozo
AU - Tanami, Yutaka
AU - Yun, Shen
AU - Sasaki, Kosuke
AU - Okano, Yoshiyuki
AU - Sugisawa, Koichi
PY - 2005
Y1 - 2005
N2 - Objective: The purpose of this study is to consider the possibility of quantitative evaluation of coronary arterial stenosis by using 16-slice multidetector-row computed tomography (MDCT). Methods: Simulated coronary arteries were prepared, which consist of 5-mm-diameter acryl tubes with contrast media (270 HU). Simulated stenoses of known density (-33 HU) were created in each coronary artery (25%, 50%, and 75%). Cardiac pulsating with 0, 50, 65, 85, and 105 beats per minute (bpm) was performed. Multiplanar reformation images for each coronary artery were created. Percent stenosis was calculated using the width middle value of boundary part of the arteries. Results: The stenoses were depicted in all heart rates. Average percent stenosis ± standard deviation was 27.4 ± 3.6%, 45.8 ± 2.6%, and 69.4 ± 2.7%, respectively. For each percent stenosis, there was a significant difference (P < 0.05). Conclusion: Sixteen-slice MDCT has a potential for noninvasive quantitative evaluation of stenosis in coronary arteries.
AB - Objective: The purpose of this study is to consider the possibility of quantitative evaluation of coronary arterial stenosis by using 16-slice multidetector-row computed tomography (MDCT). Methods: Simulated coronary arteries were prepared, which consist of 5-mm-diameter acryl tubes with contrast media (270 HU). Simulated stenoses of known density (-33 HU) were created in each coronary artery (25%, 50%, and 75%). Cardiac pulsating with 0, 50, 65, 85, and 105 beats per minute (bpm) was performed. Multiplanar reformation images for each coronary artery were created. Percent stenosis was calculated using the width middle value of boundary part of the arteries. Results: The stenoses were depicted in all heart rates. Average percent stenosis ± standard deviation was 27.4 ± 3.6%, 45.8 ± 2.6%, and 69.4 ± 2.7%, respectively. For each percent stenosis, there was a significant difference (P < 0.05). Conclusion: Sixteen-slice MDCT has a potential for noninvasive quantitative evaluation of stenosis in coronary arteries.
KW - Computed tomography
KW - Coronary artery
KW - Quantitative evaluation
KW - Stenosis
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U2 - 10.1097/01.rct.0000161421.88001.f2
DO - 10.1097/01.rct.0000161421.88001.f2
M3 - Article
C2 - 15891511
AN - SCOPUS:19544385944
SN - 0363-8715
VL - 29
SP - 382
EP - 386
JO - Journal of Computer Assisted Tomography
JF - Journal of Computer Assisted Tomography
IS - 3
ER -